From bc145da89799118260d04b5c0c909cb4b4aa3773 Mon Sep 17 00:00:00 2001
From: AuroraHuang22 <aurora90376@gmail.com>
Date: Fri, 17 Nov 2023 12:29:52 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=91=20Fix=20reading=20metadata=20undef?=
 =?UTF-8?q?ined?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 components/IscnUploadForm.vue | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/IscnUploadForm.vue b/components/IscnUploadForm.vue
index 2f7a831f..16e298ab 100644
--- a/components/IscnUploadForm.vue
+++ b/components/IscnUploadForm.vue
@@ -709,7 +709,9 @@ export default class UploadForm extends Vue {
         this.sentArweaveTransactionInfo.set(records.ipfsHash, { ...uploadedData, arweaveId });
         if (tempRecord.fileName.includes('cover.jpeg')) {
           const metadata = this.epubMetadataList.find((file: any) => file.ipfsHash === records.ipfsHash)
-          metadata.thumbnailUrl = arweaveId
+          if (metadata && metadata.thumbnailUrl) {
+            metadata.thumbnailUrl = arweaveId
+          }
         }
         this.$emit('arweaveUploaded', { arweaveId })
         this.isOpenSignDialog = false